Commit a913f507 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds

[PATCH] powernow-k8 crash workaround

From: Andrew Morton <akpm@osdl.org>

Work around the oops reported in
http://bugzilla.kernel.org/show_bug.cgi?id=6478.

Thanks to Ralf Hildebrandt <ralf.hildebrandt@charite.de> for testing and
reporting.
Acked-by: default avatarDave Jones <davej@codemonkey.org.uk>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 670bd95e
......@@ -577,6 +577,8 @@ acpi_processor_register_performance(struct acpi_processor_performance
return_VALUE(-EBUSY);
}
WARN_ON(!performance);
pr->performance = performance;
if (acpi_processor_get_performance_info(pr)) {
......@@ -609,7 +611,8 @@ acpi_processor_unregister_performance(struct acpi_processor_performance
return_VOID;
}
kfree(pr->performance->states);
if (pr->performance)
kfree(pr->performance->states);
pr->performance = NULL;
acpi_cpufreq_remove_file(pr);
......
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